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Herbaceous Perennial

Ligusticopsis wallichiana

Wallich milk parsley

A rare, clump-forming perennial with spreading, lacy, fern-like green foliage on stout, purple-flushed green stems. Large umbels of clusters of tiny white flowers, flushed with purple at the base, appear in summer and autumn. Seedheads provide winter interest

Synonyms

Cortia wallichiana
Selinum wallichianum subsp. tenifolium
see moreSelinum wallichianum
Selinum tenuifolium

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Ultimate height

1–1.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or West–facing or East–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Apiaceae
Native to the UK: No
Foliage: Deciduous
Habit: Clump forming
Name status: Correct
Plant range: Asia

How to grow

Cultivation

Grow in moderately fertile, moist but well-drained soil in full sun or partial shade

Propagation

Propagate by seed in pots in a cold frame as soon as seed is ripe; prick out into deep containers to avoid tap root damage. Propagate by division in early spring but take care as it resents disturbance

Suggested planting locations and garden types

Cottage and informal garden
Wildlife gardens
Architectural
Flower borders and beds

Pruning

Remove faded flowerheads and cut back dying foliage in autumn

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to powdery mildews in dry conditions

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